/Engine/Plugins/Experimental/ModularGameplay/Source/ModularGameplay/Public/Components/GameFrameworkComponentManager.h
Game-specific event indicating an actor is mostly initialized and ready for extension. All extensible games are expected to send this event at the appropriate actor-specific point, as plugins may be listening for it.
static [FName](API\Runtime\Core\UObject\FName) NAME_GameActorReady = FName("GameActorReady");